#13800: ghc panic: No skolem info: s_a7aK[sk] -------------------------------------+------------------------------------- Reporter: hexo | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Keywords: | Operating System: Unknown/Multiple Architecture: x86_64 | Type of failure: Compile-time (amd64) | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Project is located at: https://github.com/hacxman/clock.git Uses Ivory and Tower framerworks. Error should be introduced by code in commit SSD1306 api wrapper ( https://github.com/hacxman/clock/commit/8075047381e3bcc572c2c12ccf83fd9410ee... ) in file src/Clock/SSD1306.hs lines 32-67. When I run make blink-test, this happens: stack build . --exec 'blink-test-gen --src-dir=build/blink-test --const- fold --verbose' clock-0.1.0.0: build Preprocessing library clock-0.1.0.0... [5 of 7] Compiling Clock.SSD1306 ( src/Clock/SSD1306.hs, .stack- work/dist/x86_64-linux/Cabal-1.24.2.0/build/Clock/SSD1306.o ) /home/mzatko/src/embedded/clock/src/Clock/SSD1306.hs:241:11: error:ghc: panic! (the 'impossible' happened) (GHC version 8.0.2 for x86_64-unknown-linux): No skolem info: s_a7aK[sk] Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug -- While building package clock-0.1.0.0 using: /home/mzatko/.stack/setup-exe-cache/x86_64-linux/setup-Simple- Cabal-1.24.2.0-ghc-8.0.2 --builddir=.stack- work/dist/x86_64-linux/Cabal-1.24.2.0 build lib:clock exe:blink-test-gen exe:oled-test-gen --ghc-options " -ddump-hi -ddump-to-file" Process exited with code: ExitFailure 1 Makefile:50: recipe for target 'blink-test' failed make: *** [blink-test] Error 1 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13800 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler